Synchronizing system for multiplex telegraphs.



279,905* f n ,applicationnieduarchzaism; sriamasa'nma n n. c E. n

i telegraphfs stem .wherein` at `one station a; f distributery 1s rotated. at pmcticallyl constant ipenlentl)7 ylovvi'n UI.ilmmnnnrEY,` OEWESTIOBKEN, NEWKKJEnsEy, Aselen"engin MESNE'ESSIG @A coEronATIoN ,er NEwYomc `v`sYN'cHEoEmma sa?STEMEen.l TELiizefnarnsi. c

- v [citizen of the United f' States lresiding at West Hoboken, in the-county o State of New Jerse ,"haveinventedf'a .cerf j tain nevvfa'ncl yusefu Improvement iny Syn-f chronizing S stems forr v Multiplex `Tele-` i ch ythe following is afull,`

`Hudsonand "of W ncise,`fand' exact description.v

roduction "andl maintenance of synft amm invention 'relates particularly toa s `eed\,andfwherein at anyotherf station a l c Qslmilar 1distributeris kept inlqs'tepf vviththe y',rst,` and variationseither of acceleration yor yretardation are automatically; corrected.

` The principal objects ofthis Ainventicn'aren t to "provide improved means for" altering the t l' speed of g one rotating" `body to keep it `in `synchronisnrvvithanother andtoprovidefan` y ,arrangement forvfurnishingfa sharply de-` y ,f c ffined correcting impulse,` forcontrolling' this c 'change o'ffspeedywhen required;` yTothesey ends'y theinvention c(mtemplat'est'vvcl incle--` p movable bodies;l one. preferably' j ibeing drivenby a vibrating member, such-.as "a tuning `fork`or'its equivalent,the speed o'' such member' a being controlled byy means off i `line current vimpulses through thelagency of electromechanical means acting thereupon. The vlocali'correcting-impulses `aregprov'ided f E contacts ofthe other relay.`

hp v

e "Rbilg ed;v em p grammaticali 1' ejisdriven `at a practically constant Specification of Lette thereof, and ont nventi'on relates to improvements inl i bodiesfwhich may be separated by@` y Whee14is-kept ylia its armatureiljconnec resistance18.

` olled through theagencycof alpair, 'ected b "line current?. impulses limit `the `correctingim# v p p to thetme betweenathegengagement off contacts ofone relay andthe-disengagement y y l c th'isleak relayis norr'nally` bov'e and` other obj `ts offthisy-i '11be2fully-,setwforthin the fol-fy n esc'ripton` and*v claims, and vvill'i` be morei readilyA understoodk byfreferenc'ef to `nying drawing wherein the pref. odiment of zthe system', isv shovvn,`

fcrk ,erfequivalenty vibratingvdevice, yisf y n dis? l the case `with; `respect 4te u the receivm tributer- 3y as hereinafter described`` :The 1- pulses sent by thisdistributermaybeeitlier 'positive or negative, or `any :combination l 'n arriving at )the receiving endl` of the line," operate the line relay'` wh' h may bel arrangedl forldupl working c shown. #Atthereceiving endof theflin is a distribut'er 3' on `'which ismcunted a fpl developed ,i n and c x designatedf Cor'recting7 and an ele-,ctrically-"` vibifationfby thefelectromagn Mountedontlievshaft ofthe phonlc is abrush'carr ry9carryin `appluqrl brushesfwhich p overt effsets` ,tacts on'jthe.' distributen, g; n i" y 2 c tedtlothecbatte y and thence;r earth.` I "Thearmaturv Brates fbetweenyztvvo contacts "12 and f13,` t ey,

impulse arrives',- `vvhen it mov n gagement .With'he Contact 1 y y wfwitli, theline yrela sliownflwith its terminal 15 connecte contact `12 of theiline relay through'ithe `sistance 16, wand vits terminalfl'f connected,

thecontacty13"ofthe line rela ythrou hth The-common terminal of `t nected to the batteryll and'to gr contact'19 is connected yto thejcontactli the resistance .16,"y `while-its icox'ltaxit` 20` is A nected to? the* Kontact 13"k of thej line u above the resistance 18.5 c f` 'with the yce 19. ,i pA au; y'

h t til the armature" 10 ganst c th l an" suitablemechansm;preferably `v y n vv 'eel(notlshown)f,which-cintura understand to. be man by a tunmg,

are connected together, each group of oontacts being'connected to a terminal of the controlling relayv22, while there is acommon contact for all the separate contacts. This common contact is connected topthe armature 21 of the leak relay 14.' The armature of the controlling relay 22 is connected to the battery 23 and thence to ground. This armature operates between two contacts, one of which maybe an idle contact, the other being connected to the Winding of the mag'- net 24, for a purpose to be hereinafter described. The common point of this relay is connected through the resistance 25 to ground. One windingofthe relay is connected by the conductor 26 to one-half the contacts of (the correcting series of contacts, while the other winding is connected by the conductor 27 tothe remaining half of the contacts. The ma et 24 operates, through its armature, a uifer I28, which strikes against the tunin fork 7. AIt will be assumed that the distri uters at the transmitting and receivin end of the line are rotating in unison, with the brush carrier 9 moving the brushes over the ldistributer contacts at the same rate that the distributer brush at the transmitting .end moves its brushes over its distributer to properly translate the impulses at the receiving end of the line. The impulses willY be assumed. to be those designated line signals onthe brush, 'the rst impulse being positive and ofunit length, the second. negativeof unit length, the third positive of unit length and the fourth negative and of twice unit length, etc.

If we assume that for any reason the phonic wheel 4 is lagging behind the phonic wheel at the transmitting end f the line, and that if when this occurs a positive im pulse arrives over the line wire the operation Will be as follows: A positive impulse passing throughjthe line relay 2 lwill cause the Yarmature 10 to move over into engagement with thecontact 12 closing a circuit from battery 11, armature 10, contact 12, resistance 16, one windin of the relay 14, causing the armature 21 o the leak relay to Vmove over into engagement with the contact 20. Until the armature 21, however, pul'lsf'away from the contact 19, a pulse will be sent i which may be traced as follows: battery y11, armature 10, 'contact 12, conductor 29, contact 19, armature 21, common contact of the correcting se ents, brush, one contact of a group of t e correctingI segments, conductor 27, through one winding ofthe controllingI relay 22, resistance A25, to ground. This will cause the armature'of the Vcontrolling relay to move over into engagement with its active contact, closingthe clrcuit of the electromagnet 24 through the battery 23. Thus pulse is definitely limited to vthe interval bethe local correctingimf tween the making of the line relay contacts and the breaking of the leak relay contacts. The energization of the electromagnet 24 causes it to attract its armature and the buffer 28 moves into engagement with the ltuning fork 7, thereby increasing the. speed of. such tuning fork and thereby ,the speed of the phonic wheel 4. The phonic wheel 4 will immediately begin to run fast and will continue in suchcondition until the brush.

carrier 9 1s in advance ofthe 'brush carrier at the transmitting end of the line when on :trom the battery 11, but as at this time the brush is in advance over the corresponding brush at the transmitting station, the pulse will pass by means of the brush through one of the other group of correcting segments and over the conductor 26, through the other winding of the controlling relay 22, causing the armature of this relay to move over into engagement with',f its idle contact, thereby denergizing the electromagnet 24 and moving the bui'er 28 lout of engagement with the tuning fork 7.

Positive -or negative impulses "are constantly arriving over the line, .as the signals are sentfrom the distant station, but the effects described above only take place when 'the brushes at the receiving station lag or lead a certain amount, and then only `when the current in the line ,is changing from lpositive to negative or negative to positive.

VIn the Afollowi claims, the term vibrating memberand similar expressions, means a tuning fork or equivalent device, controlling the motor of the corresponding distributer. a

What is claimed is:

-1. In a synehronizing system, -an arrangement for providing a correcting impulse comprising a transmission line extending between two stations and traversed by a sequenceof current impulses, a relay under the in iuence of all suchline current im' pulses, a second relay controlled'by the irst said relay, la. source of current, circuit contacts'controlled by each of said relays and coperating with. said source to provide-a current impulse defined by the en agement of certain. of said contacts of the i? and the disengagement of certain of said" contacts of the second relay, a vibrating member, and electromechanical means' actuf ated by said `impulse for altering the rate vofvibration of said member.

2. In a synchronizing system,.an arran ement for providing a correcting impuse comprising a transmission vline extending between two stations and traversed by a rst relay s sequence of current impulses, a relay under 5 of the amature of said first-mentioned relay,

a source 'of current. circuit contacts controlled by each of sa'id"relays and coperating with said source to provide a current impulse defined by the, engagement ot` certain of said contactsot' the tirstqrelay and the disei'igagement of certain ot' said contacts of the second relay, a vibrating;r meniber, and electromechanical means actuated by said currentnnpulsc tor altering the rate` of vibration oi said member.

8. A synchronizing,i system comprising,r a

rotatable body for vproviding,current impulses, a transmission line associated therewith, a second independently rotatable body also'associatedwith said line. circuit contacts taintrolled by cach of said relays and adapted to provide correcting current from the engagei'neiit of contacts of one of said relays to-tlie disengagement of contacts of 5 the other ot' said relays, ,a vibrating member controlling'the movement of said secondbody, Iand elcctromia-lianical means controlled by i said correcting! ciiri'ent for controllii'ig the yi'brationof said miemlier.

independent-ly. vibrati ng' members, inca iisl controlled by eacli'for 'distributing signal cnr! sending and a receiving rotary distributor,

indepei'idently vibrating members for affecting;r the rotation' of'said distributers, means .for causingr said sending distributor to impart reversals of current toV said. re-

ceiving distribnter,and means arrangedfto member'atfecting' the rotation of said receiying distributor.upon the receipt of eurfrent-reyersals. y j I A 4synchronizingr system comprisingfa transmission line, an.indel'iendently niorable current impulse distributing bodyasingmember for controlling `the-movement f i of -one ot saidrbndies,l and a butter conto yar-iably att'ect said member tofalter the speed thereof.

7. A synchronizing'system comprising .a

vibrating member. and

4. A synchronizing system comprising two4 .by said armature` an electromagnet, an` ar- .niechanically vary the vibration of said,

sociated with each end ot' said line, a. vibrat-T tlrollcd by current impulses Aand adal'ited transmission line, an independently movable current nil'iulse distributing body associated with each end ot' said line, a Vibrating member for controlli'ig the movement of one of said bodies, and electromechanieal means controlled by current impulses and adapted to rariably attcct said member to alter the speed thereof.

H. In a synchronizing system, an arrangement t'or providingr a correcting impulse comprising a transmission line extendin between two stationsand adapted to be traversed by a sequence of impulses, a .relay controlled by all such impulses, an armatiire t'or said'relay. contacts controllable by said armature, an electl'oiiiagnet controllable by said relay. an armature and contacts for said electromagnea, circuit connections bctweeii the contactsA ot' said relay and the winding and contacts ot' said electroniagiiet` asource ot' current coi'iperating,with said connections to provide a correcting impulse defined by the interval between the closing ot' a contact ot said relay and the. open'- ing of a'contact of said elect'roiiiagnet, aelectrtiinechaiiical means 'controlled by said correcting;-impulse for altering the. rate ot'vibration ot said vibrating men'iber.

t). lln a syncliroiiizingl system, tlic combi- .relay controlled by line current impulses, an`

armature for said` relay,4 contacts controlled mature and coiitacts'for said electromtlgnet, circuit connections between the eontactsof said relay and the windingand contacts of said electroi'nagiiet, a source of current coperating with said connectioii..-,I to provide a correcting 4 impulse defined 'by the interval between the closing ot' a contact of saidV relay and 'the opening' of' a contact of said electron'iagnet, and electroniecflialiical means affected bv the correcting impulses sofprovided, and col'ieratmg with said vlbrating memberto control thel operation-of said distributer, y

In witness wliereofI hereunto subscribe t my mime this 25 dav ofr March A. D., 1914.

lPAUL M. RAINEY.;` titane/mes:l i E. Enum,

FRANK Tooim. 

